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<h1>The nairn-mpm-fea Project</h1>

<h2>Introduction</h2>

<p>This information is about the <code>nairn-mpm-fea</code> computational mechanics project.
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<h2>Code Engines</h2>

<h3>NairnMPM and NairnFEA Code Engines</h3>

<p>
 The open-source calculation engines <code>NairnMPM</code> and <code>NairnFEA</code> do material point method (MPM)  and finite element analysis (FEA) calculations, respectively. They are object-oriented, C++, platform-independent, parallel code engines.
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<h2>Documentation</h2>

<p>For complete documentation on the <code>nairn-mpm-fea</code> computational mechanics project, the user is referred to the web-based wiki called <a href="http://osupdocs.forestry.oregonstate.edu/index.php/Main_Page">OSUPDocs</a>. For times you are working on code, but do not have internet access, the following topics give reference documentation that may be enough to use the code.</p>

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<li><a href="startup/organize.html">Organization</a> - organization of the folders in this project.</li>
<li><a href="startup/index.html">Getting Starting</a> - compiling the source code.</li>
<li><a href="startup/running.html">Running the Code</a> - running the code engines.</li>
<li><a href="startup/commands.html">Input File Format</a> - explains how to get documentation for the commands needed to set up FEA or MPM calculations.</li>
<li><a href="http://osupdocs.forestry.oregonstate.edu/index.php/Main_Page#Visualization">Visualization</a> - options for visualizing the results (on line only).</li>
<li><a href="http://osupdocs.forestry.oregonstate.edu/index.php/Archive_File_Formats">Output Results Format</a> - format for output files of FEA and MPM results (on line only).</li>
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<h2>Technical Notes</h2>

<p>The following <code>PDF</code> documents have some technical notes about this code project</p>

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<li><a href="TechNotes/materials.pdf">materials.pdf</a> - notes on material modeling method.</li>
<li><a href="TechNotes/GIMP_Theory.pdf">GIMP_Theory.pdf</a> - derivation of generalized interpolation material point (GIMP) methods.</li>
<li><a href="TechNotes/contactetc.pdf">contactetc.pdf</a> - note on crack contact and multimaterial contact.</li>
<li><a href="TechNotes/Extrap.pdf">Extrap.pdf</a> - notes on extrapolation methods, particle updates, and damping in MPM (in <code>OSParticulas</code> only).</li>
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<h2>Contact</h2>

<p>For more information, contact <a href="mailto:John.Nairn@oregonstate.edu">John.Nairn@oregonstate.edu</a>.

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